II 



BOOKS FOR ENTOMOLOGISTS 



Just Published 



THE RELATION OF INSECTS TO MAN, TO OTHER 

 ANIMALS, TO ONE ANOTHER, AND TO PLANTS 



WITH A CHAPTER ON 



THE WAR AGAINST INSECTS 



By JOHN B. SMITH, Sc.D. 



Professor of Entomology in Rutgers College; Entomologist to the New Jersey 

 Agricultural Experiment Stations; Neiv Jersey State Entomologist, etc. 



The importance of insects and their influence on human life are just 

 coming to be appreciated, and this book gives an account of the manner 

 and extent of this influence. It shows how diseases of man are carried 

 by them, and tlieir own subjection to epidemic plagues, and discusses 

 parasitism on the higher animals and the curious modifications of life 

 and development imposed by this habit. 



It further shows that the most effective checks to insect increase are 

 among their own kind, and how primary, secondary, and even tertiary 

 parasites battle for supremacy, each contributing its own share to the 

 maintenance of the balance of nature. 



With a colored frontispiece and 121 line cuts in the text. 

 Large 12mo. 314 pages Cloth, $1.50 net. 



Second Revised Editioyi 

 ECONOMIC ENTOMOLOGY 



By John B. Smith, Sc.D. 

 This book tells all about the more gen- 

 erally injurious insects, and the best 

 methods of dealing with them. The 

 work is indispensable to the farmer and 

 fruit-grower. 



Profusely illustrated. 475 pages. 



Crown 8vo. Cloth, $2.50 net. 



Second Revised Edition 

 Insects Injurious to Fruits 



By William Saunders, F. R. C. S. 

 A concise and comprehensive volume, 

 containing all the important facts relat- 

 ing to insects known to be injurious to 

 fruits in all parts of the United States 

 and (^anada. 



445 illustrations. 436 pages. 

 Crown 8vo. Cloth, $2.00 net. 



BIRDS IN THEIR RELATIONS TO MAN 



By C. M. WEED and N. DEARBORN 



The authors' knowledge of insect life, both as affecting the diet of 

 birds and as injuring vegetation, will help many to understand the cir- 

 cle of relations in the two worlds — animal and vegetable. 



Lavishly illustrated. Octavo. Cloth. $2.50 net. 



For Free Descriptive Circulars send to 



J. B. LIPPINCOTT COMPANY, Publishers 

 PHILADELPHIA 



Please mention the Journal of Economic Entomology when writing to advertisers. 



